Improvement in machines for making eyelets



Patented Aug. 7, 1866.

E. B. BUTLER.

MACHINE FOR MAKING EYELBTS.

54 yc at UNITED STATES PATENT Fries.

lMPROi/EMENT LN MACHiNES FOR MAKING EYELETS.

Specitication forming part of letters Patent No. 56,897, dated August 7, 1866.

To all whom it may concern:

Be it known that I, EDWIN l3. BUTLER, of New Britaii1,county of Hartford, and State of Connecticut, have invented a certain new and useful Improvement in Machines for Making Eyelets and I do hereby declare that the same is described and represented in the follow ing specification and drawings; and'to enable others skilled in the art to make and use the same, I will proceed to describe its construction and operation, referring to the drawings,- in which the same letters indicate like parts in each of the figures.

The nature of this improvement will, be understood from the specification and drawings. The object desired to be attained thereby is to greatly multiply the number and rapidity of 'the manufacture in a given. length of time,

and also to produce an equally good articlefrom a metal sheet of less thickness than is commonly used for this purpose.

Figure 1 is a top View of the bed-of the machine. Fig. 2 is a top and sectional sideview of a punch or former having a clearer, arranged therein. Fig. 7 is a left-hand side view,in section. Fig. 8 is a back side view, showing the clearer q and clearer-bar q. Fig. 6 shows the cupping, forming, and punching die-plates.

The mechanism above the bed -plate,' by which this improvement is effected, is made very much in the same way as presses nowin use for otherpurposes; or, in other Words, the actuating of the punch or ,former, the movement of the die-plate, and the means of lifting the clearers upward through the bed and die plates are effected by mechanism in common use. I therefore omit to describe in particulartheir'co'nstruction, but for the sake of illustration have shown such parts in Figs. 3, 4, and 5. a are V-shape guideways, secured upon each side of the. bed-plate I). care the die-plates, of three different patterns,'and two or more in number, into which are formedtwo or; more rows of dies, d,each of which plates are fitted between the guideways a so as to work closely and freely therein. These dies "are designed to be made ofequal dislancelengthwise'of the plates from center tocenter, and the centers of theend dies are designed to be just one-halfthe,

distance from the end,,so that when two plates are placed end to end the distance from center to center of the end dies of each plate will be the same as those in the plates, so that as each about the same size as the blank f,

cross-row of dies are moved along successively under the punches or formers they will da or formers, g. These punches or formers (see Fig. 2,) g, are made and secured much in. the usual way, except-that they are provided with a center clearer-bar, hf, having a spring, 1', arranged therein in such a manner as to hold the clearer-bar up, and also havi'n an'arm, z",-pr0- jecting back through and orking in a perpendicular slit formed in the stock h, so that if any one of the eyelets adhere to the punch or former when it isiraised from the die the arm 6 will strike a detent or screw, ligand thereby cause the clearer to protrude from the lowerend of the former and discharge the blank or eyelet therefrom.

The die-plate c is for the cupping operation,

the first depression in the face of which is made which is placedtherein, and by the action of ihe form ers'isforced downward into the dies d, andis formed into cup shape. (See Fig l.) heplate a is for the'forming operation. The firs depression from the top surface is'to hold the'flange edge in the proper position to beforced down into the forming-die. The sides a: of the sec-- ond depression are straight, so that if there is any unequal projection of the upper or flange edge, theformer,-'being made of acorrespond- -ing shape, will force the metal into its proper symmetrical shape. The plate 0', is simply for holdingth'e eyelets in positiondirectly-over the die at for punching out the end, which die at is arranged in the bed-plate directly under the, die-plates and formers.

Now, it will be seen that by placing the blank in the depressions of the plate 0, and then placing the die plate into or between the guideways a, it may be moved along successively, one row of dies at a time, under and receive the action of punch or formers by means of the slide-block n and pawl n, and while one plate is passing through the machine another is being filled and'introduced against the rear eudof the first, so as to keep up a continuous action of the machine. These die-plaltesare filled and passed through the machine in each of the three operations in the same way, thus completing the eyelets in the most perfect and rapid manner.

This improvement may be made to operate,

in a circular form or revolving" bed when de-H sirable.

I. believe I have thus shown the nature, construction, and operation of this improvement,

2. The male and female dies, constructed and operating as described.

3. The employment of the clearersq, in combination with the die-plates 0, arranged and operating substantially as and for the purpose described.

4. The employment of the slide-plate n and pawl n,1'n combinationwith the steps or pins eand die-plates 0, substantially as and for the purpose described.

' 5. In combination with the male and female dies,.the clearer h, substantially as described.

EDWIN B. BUTLER. [L. s]

Witnesses:

G. O. GARDNER, JEREMY W. Buss. 

